Rigid tray



FIG. 1 is an isomeric view of a rigid tray showing our new design.

FIG. 2 is a top view thereof.

FIG. 3 is a bottom view thereof.

FIG. 4 is a side view thereof; and,

FIG. 5 is an end view thereof.

The broken lines shown represent unclaimed subject matter and form no part of the claimed design. 

CLAIM The ornamental design for a rigid tray, as shown and described. 